Movable oil injector



Maf. 20, 4923. 4,448,745 F. G. HOBART ET AL MOVABLE OIL INJECTOR Filed Sept. 8, 1919 FRANKLIN G. HOBART AND CHARLES B. JAHNKE, OBELOIT, W'ISCON'SN', ASSIGNORS i TO FAIRBANKS, MORSE & COMPANY, OF'CHICAGO, ILLINOIS, A CORPORATION OF f ILLINOIS.

MOVLE OIL INJECTOR. w

Application filed September 8, l1919. Serial No. 322,592.

' certain part of the combustion chamber,

specially heated for ignition purposes, and is thereafter directed to another part-for the regular operation of the engine.

The object of the invention is to provide an oil' injector for use in mechanism of this classin which the injector itself is movable to so change the direction of the stream of oil.

rlhe invention consists in mechanism capable of carrying out/` the foregoing objects which can be easily and cheaply made,

which is satisfactory in operation, and not readily liable toget out of order. More particularly, the invention consists in features and details of construction hereafter more fully set forth in the specification and claims.

Thesin'gle gure of the drawing is a section thru mechanism illustrating this invention in its preferred form. lt shows conventionally the upper end 2 of an engine cylinder having passage 4 leading to the piston (not shown) covered by cylinder head -6 'containing a combustion chamber 8, partially water jacketed as at 10, there being at onev side of this chamber 8 the initially specially yheated mechanism 12 here shown as an electrical device.

The -problem to be solved by this invention is the installation in connection with this chamber 8 of an injector mechanism which may be selectively moved, at the will of the operator, outside the chamber to throw oil against the'heater 12 or tq some other part of the chamber as', for instance, along the arrow headed line 14 into the passage 4. L

The desired result is accomplished by the mechanism shown in the upper portion of the ligure which consists of the following j mechanism: In an openingmade 1n the top of the combustion chamber 8 at an angle to the line 14 heretoforereferred to,ibeing the i central a-Xis of the cylinder and the chamber 8, is inserted an injector case 16 contacting L the combustion chamber 8 in a close, fit on the surface 18 so the water jacket in space 10 will cool case 16. This case is drawn tight against surface 18 referred to and secured in place bybolts or other means outside Vthe combustion chamber forming no part ofvthisv invention and (V therefore not shown.

Journaled on the central axis of this case 16 is a` rotatable injector member 20 large enough at its lower end to take annular bearing at 22 against the lower portion of case 16 and be thus held against upward` movement with reference to the .case and small enough at its upper end to `be enclosed by the sleeve 24 rigidlyheld in place by a. nut 26 bearing on handle member 28, nonrotatably positioned byja key or the like 30. rlhe sleeve 24 is rotatable in the stuff ing box packing mechanism 32-34-36, of obvious construction,4 attached t o the -end of case 16. The lower end of sleeve 24 terminates in an oil space 36 occupyinglthecentral portion of the interior of the case 16 and is engaged by the upper end of a spring 38 whose lower end vrests upon a washer 40 supported from below on inclined faces 42 provided for it in the inner wall of the case 16. Spring 38 tends to move the entire injector member upwardl and thus force its lower large end against inclined faces 22. The chamber 36 is supplied with lfuel oil'by any suitable pipe connection 44.

The washer 40 does not occupy the entire cross-section of the chamber 36, but is con-v structed to allow oil toy pass into-the annular spacel 46 communicating with angular passage 48 leading to the approximate lower center of the injector member 20 where it .opens yinto a large passage 50 inclined sharply away from the centralaxis of member 20. Passage 50 is entered by the finjector nozzle 52 having at its outer end a .discharge port nozzle 54 and at its inner end' a spring pressedball valve -56 operating in the usual way to permit under normal con- Iditions, flow of oil from pipe 44 outward thru the injector nozzle port 54 and to prenvent the return of such oil with or without ases of combustion when 1s fired.

The angularity of injector case 16 to the the engine charge center line 14 of the. engine and the angularity of passage 50 to the central axis of the movable member 20 of the injector is such that With the parts in position shown in the figure, oil delivered from injector nozzle port 5st will pass directly to the initial firing mechanism'l2 and that when handle 28 is given an angular rotation from the position shown the nozzle port 54 Will be directed to and deliver oil to a diferent part of the hot chamber 8. The particular device here illustrated is so designed that when handle 28 is rotated 18() degrees from the position shown nozzle port 54 will direct fuel down passage 4:. Obviously by varying the angularity of the injector with reference to combustion chamber and by varying the angularity of discharge passage 50 tok the injector itself the device may ijn initial design be made to shift the direction of the stream of delivered oil between almost any two selected points in the chamber 8.

Having thus described our invention what we "claim as new. and desire to secure by Letters Patent is 4 1. In' mechanism of the class described, a stationary injector case adapted to be posi# tioned to deliver oil to an engine, a rotatable injector member mounted within said case, there being a passage angularto'central axis of the injector member thru. which oil is discharged leading from a point in the side of and intermediate of the ends of the injector member to kthe operating end of the4 injector member, means supporting the injector member against longitudinal movement with reference to the case, and means for supplying oil from the outside to the interior of the injector case and to said discharge passages, for the purposes set 40 forth.

2. In mechanism of the class described, an injector case, a rotatablet member mounted within the case having at one end an enlarged portion taking bearing adjacent to the end of the case to prevent movement of the member to the case, a stuffing boxmechanism at the other end of the case preventingJ leakage of oil at that end of the case, a

spring mechanism in a space formed in the 5e interior of the case adapted to move the rotatable member in a direction to hold this yenlarged end against the end of the case "While permlttlngmotationof the inner member, means-for rotating said member, means supplying fuel material from outside the case to said passage which contains thei spring and thence to a discharge passage leading from and thru the enlarged end of the" rotatable member and at an angle tothe central axis of the injector, for the purposes 

